diff --git a/pedagogy/migrations/0001_initial.py b/pedagogy/migrations/0001_initial.py
index b8e8e81f..d94cc85a 100644
--- a/pedagogy/migrations/0001_initial.py
+++ b/pedagogy/migrations/0001_initial.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Generated by Django 1.11.20 on 2019-06-16 14:22
+# Generated by Django 1.11.20 on 2019-06-17 16:08
 from __future__ import unicode_literals
 
 from django.conf import settings
@@ -202,7 +202,7 @@ class Migration(migrations.Migration):
                         default=-1,
                         validators=[
                             django.core.validators.MinValueValidator(-1),
-                            django.core.validators.MaxValueValidator(5),
+                            django.core.validators.MaxValueValidator(4),
                         ],
                         verbose_name="global grade",
                     ),
@@ -213,7 +213,7 @@ class Migration(migrations.Migration):
                         default=-1,
                         validators=[
                             django.core.validators.MinValueValidator(-1),
-                            django.core.validators.MaxValueValidator(5),
+                            django.core.validators.MaxValueValidator(4),
                         ],
                         verbose_name="utility grade",
                     ),
@@ -224,7 +224,7 @@ class Migration(migrations.Migration):
                         default=-1,
                         validators=[
                             django.core.validators.MinValueValidator(-1),
-                            django.core.validators.MaxValueValidator(5),
+                            django.core.validators.MaxValueValidator(4),
                         ],
                         verbose_name="interest grade",
                     ),
@@ -235,7 +235,7 @@ class Migration(migrations.Migration):
                         default=-1,
                         validators=[
                             django.core.validators.MinValueValidator(-1),
-                            django.core.validators.MaxValueValidator(5),
+                            django.core.validators.MaxValueValidator(4),
                         ],
                         verbose_name="teaching grade",
                     ),
@@ -246,7 +246,7 @@ class Migration(migrations.Migration):
                         default=-1,
                         validators=[
                             django.core.validators.MinValueValidator(-1),
-                            django.core.validators.MaxValueValidator(5),
+                            django.core.validators.MaxValueValidator(4),
                         ],
                         verbose_name="work load grade",
                     ),
diff --git a/pedagogy/models.py b/pedagogy/models.py
index e4977e1b..28f3c880 100644
--- a/pedagogy/models.py
+++ b/pedagogy/models.py
@@ -172,35 +172,35 @@ class UVComment(models.Model):
     comment = models.TextField(_("comment"))
     grade_global = models.IntegerField(
         _("global grade"),
-        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(5)],
+        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(4)],
         blank=False,
         null=False,
         default=-1,
     )
     grade_utility = models.IntegerField(
         _("utility grade"),
-        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(5)],
+        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(4)],
         blank=False,
         null=False,
         default=-1,
     )
     grade_interest = models.IntegerField(
         _("interest grade"),
-        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(5)],
+        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(4)],
         blank=False,
         null=False,
         default=-1,
     )
     grade_teaching = models.IntegerField(
         _("teaching grade"),
-        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(5)],
+        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(4)],
         blank=False,
         null=False,
         default=-1,
     )
     grade_work_load = models.IntegerField(
         _("work load grade"),
-        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(5)],
+        validators=[validators.MinValueValidator(-1), validators.MaxValueValidator(4)],
         blank=False,
         null=False,
         default=-1,
diff --git a/pedagogy/tests.py b/pedagogy/tests.py
index 5ecf3b9e..6809d5f6 100644
--- a/pedagogy/tests.py
+++ b/pedagogy/tests.py
@@ -317,11 +317,11 @@ def create_uv_comment_template(user_id, uv_code="PA00", exclude_list=[]):
     comment = {
         "author": user_id,
         "uv": UV.objects.get(code=uv_code).id,
-        "grade_global": 5,
-        "grade_utility": 5,
-        "grade_interest": 5,
+        "grade_global": 4,
+        "grade_utility": 4,
+        "grade_interest": 4,
         "grade_teaching": -1,
-        "grade_work_load": 3,
+        "grade_work_load": 2,
         "comment": "Superbe UV qui fait vivre la vie associative de l'école",
     }
     for excluded in exclude_list: